Inventor

R. David Fletcher

Inventor

Surrey, CA

Overview

4→

Patents

2003–2007

Patent span

Human necessities

Primary field (CPC A)

Patents· 4 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Fprimary

A61FFilters implantable into blood vessels33%

A61BDiagnosis11%

B23KSoldering or unsoldering11%

B29CShaping or joining of plastics11%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts11%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact11%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application11%

PatentTitleYear

7,208,711'Dielectric welding methods and apparatus'2007 7,077,858'Flexible heat exchangers for medical cooling and warming applications'2006 6,682,552'Brain cooling device and monitoring system'2004 6,511,502'Apparatus for and method of cooling a brain'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003Based in Ontario, CA· patent location history

2004Based in Vancouver, British Columbia, CA· patent location history

2006–2007Patents assigned to COOLHEAD TECHNOLOGIES INC (2)· patent assignee history

2006Based in White Rock, CA· patent location history

2007Based in Surrey, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
COOLHEAD TECHNOLOGIES INC	2	2006–2007

Locations

Location	Patents	Span
Surrey, CA	1	2007
White Rock, CA	1	2006
Vancouver, British Columbia, CA	1	2004
Ontario, CA	1	2003